NIL HEARDRECEPTION LOG

XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-10-03 10:31:54Z · 10:00 · received at Chiba, Japan

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-10-03 10:31:54Z, 10:00: data 77% · carrier 13% · keyed-tone 7% · mixed 3% · tone 1160 Hz · keying 0.20 Hz depth 0.95
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone data carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.5 MB ⤓ Opus 2490 kB { }
What was heard
data 77% · carrier 13% · keyed-tone 7% · mixed 3% · tone 1160 Hz · keying 0.20 Hz depth 0.95 — dominant tone 1160 Hz, keyed at 0.2 Hz (depth 0.95). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Chiba, Japan (QM05cq) · EndFed · reported SNR 33 dB — thanks to the operator. Receivers
Provenance
sha256 5794dcef94686c91b70facdb1472e71497d8bdaabdf2b4fb961c9fd8f92bc8b1
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-03T1031Z-6250-xsl-6250
Heard in the record
— linked once the record exists.
Licence
CC BY 4.0 — credit NIL HEARD / Reception Log. The recording is ours; the transmission is somebody else's. Descriptions describe sound, never content — why.
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